<template>
  <div class="cart">
    <h4>全部商品</h4>
    <div class="cart-main">
      <div class="cart-th">
        <div class="cart-th1">全部</div>
        <div class="cart-th2">商品</div>
        <div class="cart-th3">单价（元）</div>
        <div class="cart-th4">数量</div>
        <div class="cart-th5">小计（元）</div>
        <div class="cart-th6">操作</div>
      </div>
      <div class="cart-body">
        <ul class="cart-list" v-for="cartInfo in cartListInfo" :key="cartInfo.id">
          <li class="cart-list-con1">
            <input
              type="checkbox"
              name="chk_list"
              :checked="cartInfo.isChecked===1"
              @click="changeOneIsCheck(cartInfo.skuId,cartInfo.isChecked)"
            >
          </li>
          <li class="cart-list-con2">
            <img :src="cartInfo.imgUrl">
            <div class="item-msg">{{cartInfo.skuName}}</div>
          </li>
          <li class="cart-list-con3">
            <div class="item-txt">语音升级款</div>
          </li>
          <li class="cart-list-con4">
            <span class="price">{{ cartInfo.skuPrice }}</span>
          </li>
          <li class="cart-list-con5">
            <a href="javascript:void(0)" class="mins" @click="updateSkuNum(cartInfo.skuId,-1)">-</a>
            <input
              autocomplete="off"
              type="text"
              :value="cartInfo.skuNum"
              minnum="1"
              class="itxt"
              @change="updateSkuNum(cartInfo.skuId,$event.target.value-cartInfo.skuNum)"
            >
            <a href="javascript:void(0)" class="plus" @click="updateSkuNum(cartInfo.skuId,1)">+</a>
          </li>
          <li class="cart-list-con6">
            <span class="sum">{{ cartInfo.skuPrice * cartInfo.skuNum }}</span>
          </li>
          <li class="cart-list-con7">
            <a href="#none" class="sindelet" @click="deleteOne(cartInfo.skuId)">删除</a>
            <br>
            <a href="#none">移到收藏</a>
          </li>
        </ul>
      </div>
    </div>
    <div class="cart-tool">
      <div class="select-all">
        <input
          class="chooseAll"
          type="checkbox"
          v-model="goodsAllChecked"

        >
        <span>全选</span>
      </div>
      <div class="option">
        <a href="#none">删除选中的商品</a>
        <a href="#none">移到我的关注</a>
        <a href="#none">清除下柜商品</a>
      </div>
      <div class="money-box">
        <div class="chosed">已选择
          <span>{{ totalSkuNum }}</span>件商品</div>
        <div class="sumprice">
          <em>总价（不含运费） ：</em>
          <i class="summoney">{{ sumAllPrice }}</i>
        </div>
        <div class="sumbtn">
          <a class="sum-btn" target="_blank">结算</a>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import {
  reqShopCartData,
  addOrUpdateCartReq,
  reqChangeOenIsChecked,
  reqChangeAllIsChecked,
  reqDeleteOneGoods

} from "@api/shopCartApi"
  export default {
    name: 'ShopCart',
    data(){
      return{
        cartList:[],
        totalPrice:0,
      }
    },
    mounted() {
      this.getCartListReq()
/*      setTimeout(()=>{
        console.log(this.cartListInfo)
      },2000)*/
    },
    computed:{
      cartListInfo(){
        return this.cartList[0]?.cartInfoList || []
      },
      //计算全部都被选中的数量
      totalSkuNum(){
        return this.cartListInfo.reduce((p,c)=>{
          return p + (c.isChecked === 1? c.skuNum : 0)
        },0)
      },
      //计算如果所有的都被选中，全选框就会选中
      goodsAllChecked:{
        async set(isChecked){
          // console.log(value)
          // 计算出全部的id列表
          const skuIdList = this.cartListInfo.reduce((p,c)=>{
            p.push(c.skuId)
            return p
          },[])
          await reqChangeAllIsChecked(isChecked?1:0,skuIdList)
          this.getCartListReq()
        },
        get(){
          return this.cartListInfo.every(item => {
            return item.isChecked === 1
          })
        }
      },
    //  计算已选中总价
      sumAllPrice(){
        return this.cartListInfo.reduce((p,c) => {
          //判断商品是否被选中
          if (c.isChecked !== 1) return p
          return c.skuPrice * c.skuNum + p
        },0)
      }
    },
    methods:{
    //  封装获取购物车列表的请求
      async getCartListReq (){
        try {
          const re = await reqShopCartData()
          this.cartList = re
        }catch (e){
          console.log('请求购物车数据失败',e.message)
        }
      },
    //  更改商品数量并且重新发送请求
      async updateSkuNum(skuId,skuNum){
        // console.log(skuId,skuNum)
        await addOrUpdateCartReq({skuId, skuNum})
        this.getCartListReq()
      },
      //更改单个商品的选中状态
      async changeOneIsCheck(skuId,isChecked){
        await reqChangeOenIsChecked({
          skuId:skuId,
          isChecked:isChecked===1?0:1
        })
        this.getCartListReq()
      },
    //删除单个商品
      async deleteOne(skuId){
        await reqDeleteOneGoods(skuId)
        this.getCartListReq()
      }
    }
  }
</script>

<style lang="less" scoped>
  .cart {
    width: 1200px;
    margin: 0 auto;

    h4 {
      margin: 9px 0;
      font-size: 14px;
      line-height: 21px;
    }

    .cart-main {
      .cart-th {
        background: #f5f5f5;
        border: 1px solid #ddd;
        padding: 10px;
        overflow: hidden;

        &>div {
          float: left;
        }

        .cart-th1 {
          width: 25%;

          input {
            vertical-align: middle;
          }

          span {
            vertical-align: middle;
          }
        }

        .cart-th2 {
          width: 25%;
        }

        .cart-th3,
        .cart-th4,
        .cart-th5,
        .cart-th6 {
          width: 12.5%;

        }
      }

      .cart-body {
        margin: 15px 0;
        border: 1px solid #ddd;

        .cart-list {
          padding: 10px;
          border-bottom: 1px solid #ddd;
          overflow: hidden;

          &>li {
            float: left;
          }

          .cart-list-con1 {
            width: 4.1667%;
          }

          .cart-list-con2 {
            width: 25%;

            img {
              width: 82px;
              height: 82px;
              float: left;
            }

            .item-msg {
              float: left;
              width: 150px;
              margin: 0 10px;
              line-height: 18px;
            }
          }

          .cart-list-con3 {
            width: 20.8333%;

            .item-txt {
              text-align: center;
            }
          }

          .cart-list-con4 {
            width: 12.5%;

          }

          .cart-list-con5 {
            width: 12.5%;

            .mins {
              border: 1px solid #ddd;
              border-right: 0;
              float: left;
              color: #666;
              width: 6px;
              text-align: center;
              padding: 8px;
            }

            input {
              border: 1px solid #ddd;
              width: 40px;
              height: 33px;
              float: left;
              text-align: center;
              font-size: 14px;
            }

            .plus {
              border: 1px solid #ddd;
              border-left: 0;
              float: left;
              color: #666;
              width: 6px;
              text-align: center;
              padding: 8px;
            }
          }

          .cart-list-con6 {
            width: 12.5%;

            .sum {
              font-size: 16px;
            }
          }

          .cart-list-con7 {
            width: 12.5%;

            a {
              color: #666;
            }
          }
        }
      }
    }

    .cart-tool {
      overflow: hidden;
      border: 1px solid #ddd;

      .select-all {
        padding: 10px;
        overflow: hidden;
        float: left;

        span {
          vertical-align: middle;
        }

        input {
          vertical-align: middle;
        }
      }

      .option {
        padding: 10px;
        overflow: hidden;
        float: left;

        a {
          float: left;
          padding: 0 10px;
          color: #666;
        }
      }

      .money-box {
        float: right;

        .chosed {
          line-height: 26px;
          float: left;
          padding: 0 10px;
        }

        .sumprice {
          width: 200px;
          line-height: 22px;
          float: left;
          padding: 0 10px;

          .summoney {
            color: #c81623;
            font-size: 16px;
          }
        }

        .sumbtn {
          float: right;

          a {
            display: block;
            position: relative;
            width: 96px;
            height: 52px;
            line-height: 52px;
            color: #fff;
            text-align: center;
            font-size: 18px;
            font-family: "Microsoft YaHei";
            background: #e1251b;
            overflow: hidden;
          }
        }
      }
    }
  }
</style>